DocumentCode
828848
Title
Microstrip directional coupler with nearly ideal TEM coupler performance
Author
Wang, S.-M. ; Hsieh, M.-Y. ; Chiang, C.-H. ; Chang, C.-Y.
Author_Institution
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Volume
41
Issue
11
fYear
2005
fDate
5/26/2005 12:00:00 AM
Firstpage
651
Lastpage
653
Abstract
A meandered parallel coupled-line structure is proposed to achieve high directivity within a wide bandwidth. By properly increasing the meandered parallel coupled-line sections, the high-directivity bandwidth becomes much wider. An example coupler is fabricated to verify the theory. More than 50 dB of isolation is achieved over a bandwidth of zero to twice centre frequency.
Keywords
microstrip directional couplers; transmission electron microscopy; TEM coupler performance; centre frequency; high-directivity bandwidth; microstrip directional coupler; parallel coupled-line structure;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20050681
Filename
1437879
Link To Document